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boards/same70-qmtech: clarify usage of CD signal on SD card connector

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By default SAME70_QMTECH board does not have CD signal routed to
SAME70.  The HW rework can be done to enable CD signal.  Clarify
description of SD card connector.
Change configuration of CD pin to get auto unmount work correctly

Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
This commit is contained in:
Petro Karashchenko 2022-01-22 01:13:20 +02:00 committed by Xiang Xiao
parent b803919b9d
commit ea177faaf6
2 changed files with 22 additions and 18 deletions
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16
boards/arm/samv7/same70-qmtech/README.txt
View File

@ -66,21 +66,21 @@ SD Card
Card Slot
---------
The SAM E70 QMTECH has one standard SD card connector that is connected to
the High Speed Multimedia Card Interface (HSMCI) of the SAM
E70. SD card connector:
the High Speed Multimedia Card Interface (HSMCI) of the SAM E70.
SD card connector:
------ ----------------- ---------------------
SAME70 SAME70 Shared functionality
------ -----------------
SAME70 SAME70
Pin Function
------ ----------------- ---------------------
------ -----------------
PA30 MCDA0 (DAT0)
PA31 MCDA1 (DAT1)
PA26 MCDA2 (DAT2)
PA27 MCDA3 (DAT3)
PA25 MCCK (CLK) Shield
PA25 MCCK (CLK)
PA28 MCCDA (CMD)
PD17 Card Detect (C/D) Shield
------ ----------------- ---------------------
N/A Card Detect (C/D)
------ -----------------
Configuration Settings
----------------------

24
boards/arm/samv7/same70-qmtech/src/same70-qmtech.h
View File

@ -144,24 +144,28 @@
/* HSMCI SD Card Detect
*
* The SAM E70 QMTECH has one standard SD card connector that is connected
* to the High Speed Multimedia Card Interface (HSMCI) of the SAM E70. SD
* card connector:
* to the High Speed Multimedia Card Interface (HSMCI) of the SAM E70.
* SD card connector:
*
* ------ ----------------- ---------------------
* SAME70 SAME70 Shared functionality
* ------ -----------------
* SAME70 SAME70
* Pin Function
* ------ ----------------- ---------------------
* ------ -----------------
* PA30 MCDA0 (DAT0)
* PA31 MCDA1 (DAT1)
* PA26 MCDA2 (DAT2)
* PA27 MCDA3 (DAT3) Camera
* PA25 MCCK (CLK) Shield
* PA27 MCDA3 (DAT3)
* PA25 MCCK (CLK)
* PA28 MCCDA (CMD)
* PD17 Card Detect (C/D) Shield
* ------ ----------------- ---------------------
* N/A Card Detect (C/D)
* ------ -----------------
*
* The SD card connector does not have CD signal connected to SAM E70 pin,
* but in order to provide automounter support the HW rework can be done and
* CD signal can be connected to SAM E70 PD17 (connector J3 pin 17).
*/
#define GPIO_HSMCI0_CD (GPIO_INPUT | GPIO_CFG_PULLDOWN | GPIO_CFG_DEGLITCH | \
#define GPIO_HSMCI0_CD (GPIO_INPUT | GPIO_CFG_DEFAULT | GPIO_CFG_DEGLITCH | \
GPIO_INT_BOTHEDGES | GPIO_PORT_PIOD | GPIO_PIN17)
#define IRQ_HSMCI0_CD SAM_IRQ_PD17